I replaced all of the caps that were the same value as the mux/demux circuits as advised by Michael Buchner (he said it was the mux/demux circuits), and that that was my issue with the machine. He said that they are usually worn out and are the major culprits of the problem I'm having with mine. It was a starting point.
If the mux/demux caps are worn out and ALL the caps are the same age on the board, wouldn't it make sense to change them all? They are cheap enough.
As I stated previously, that didn't change the issue I'm having with it, so now it has to be the mux/demux ICs, as stated earlier in this thread by Michael himself on the issue with this machine that this member is having.
If I've replaced all the caps with the proper values and it does the exact same thing it did before, how then could I have created more problems? Can you please explain that theory?
--- In Simmons_Drums@yahoogroups.com, "gordonjcp" <gordon@...> wrote:
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> > I can attest to Michael's statements that these can be a real pain when not working. He has been a big help to me lately with one of these SDS9 units as well. After having replaced all the caps on the board, not just the demux ones, I am back to square one as well. My next step is IC replacement, and hopefully it gets mine working again soon.
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> Any particular reason why you replaced the all the capacitors? Were they ∗all∗ faulty?
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> Don't just start ripping parts out and replacing them, without having some idea of why or whether or not it's likely to cause the symptoms you have. You've probably generated more faults than you had to begin with now...
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> --
> Gordonjcp MM0YEQ
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